Flexible support for rings of ring-spinning machines



H. P. SHAW. IBLE SUPPORT FOR RINGS OPRING SPINNING MACH (No Model.)

N 10.256. Patented Sept. 3 9.

WITNEEEEEI. IIJX/EPITDR rd. Pawns. PholuLilhngnpm Walhinglnm n c.

UNITED, STATES PATENT. OFFICE. I

HENRY F. SHAWV, OF BOSTON, MASSACHUSETTS.

FLEXIBLE SUPPORT FOR RINGS OF RING-SPINNING MACHINES.

SPECIFICATION forming part of Letters Patent No. 410,256, dated September 3, 1889.

Application filed March 26, 1889. gerial No. 304,892. (No model.)

To all whom it may concern.-

Be it known that I, HENRY F. SHAW, of Boston, in the county of Suffolk and State of Massachusetts, have invented an Improvement in Flexible Supports for Rings of King Spinning Machines, of which the following is a specification, reference being had to the acpanying drawing.

In ring-spinning frames the spindles are now commonly more or less flexibly supported, so that they, when carrying an unbalanced load, may gyrate, or so that any vibration arising therefrom will not be communicated to the frame. A spindle thus supported may be of much less weight to carry the required load and may be run by means of less power than one for which there is no such provision, since the spindle and load may revolve about their center of gravity, or nearly so, rather than about their geometrical center when these centers do not coincide. Any forcesuch as results from the pull of the threadwhich tends to move the spindle out of such center of rotation necessitates greater weight in the spindle and more'power to drive it,

than if such force did not exist.

While many different devices have been employed whereby the spindle may have the lateral motion of gyration or vibration, the ring has heretofore been, so far as relates to lateral motion, rigidly fixed in the frame. In practice the thread, by which there is a draft largely between and in" like degree on the spindle and the ring, acts to pull the spindle out of its proper center of rotation. In all rin -spinning this pull is considerable, so that the bolster must be held much more firmly than otherwise might be.

For ring-spinning and in all ring-twisters the bolster must be practically so rigidly held that the spindle cannot gyrate or vibrate, as desired. Furthermore, all gyratory or vibratory motion of the spindle, owing to whatever cause, results in a constant or intermittent eccentricity of the spindle with reference to the fixed ring, which is very undesirable for.

many obvious reasons.

The objects of my invention are, first, to prevent that draft of the thread which is on both spindle and ring from pulling the spindle out of its proper center of rotation, and, second, to maintain the spindle in the center of the ring, the general result being that the spindle may have a much greater freedom in its gyratory or vibratory movement, and therefore will run much easier than heretofore, and also that the draft on the thread may be at all times the same, and the thread will not be subjected to unequal strain or sudden jerks to an extent not before attained. I am enabled to overcome the said defects and objections by a very cheap, simple, durable, and efficient device, as herein after more fully described.

My invention consists in providing the ring with an elastic, yielding, or flexible support within the frame of the machine, so that when in operation the ring may have a gyratory or vibratory motion imparted to it corresponding to that of the spindle by'the pull of the thread acting simultaneously upon each or upon the spindle and ring, so that the ring may be permitted to yield horizontally, as desired, as specifically set forth in the claims.

In the drawing is shown a vertical sectional elevation of so much of a spindle, bolster, and support therefor, a ring, and flexible means for supporting the ring in the frame of the machine as is sufficient to illustrate ade- Vice embodying my invention.

The spindle A and whirlB are of usual construction, and are supported in the stand 0, secured upont-he rail D, in the common manner, by means of the threaded stud c and nut a. The ring E is provided upon the outer side with a circumferential groove it, within which I provide a flexible or elastic rubber ring F, which ring fits snugly or closely within a circular hole or opening formed Within the lower side of the ring-rail G and extends upward nearly through the same, leaving a shoulder or annular inward projection b, which forms a bearing for the top side of said rubber ring F, as shown. Extending through the top portion of said rail G is a circular hole or opening somewhat larger than the diameter of the said ring E, which projects above the top of the rail a suitable distance to permit the free movement of the usual traveler shown. The ring E, having the flexible band or elastic rubber hearing or supportring F, being placed in position within the circular opening of the said rail Gr may be retained therein by means of supportpieces cl, secured to the rail, as shown, or in any suitable manner desired. Now it willbe seen and understood that an unbalanced load tween the same, as and for the purposes set' forth.

2. The combination, With a spindle, ring rail, and ring; of a flexible ring-support interposed between the said ring and ring-rail, whereby the said ring is permitted to move horizontally about the axis of the spindle or its proper center of rotation, so as to coincide with any gyratory motion which may be i111- parted to the spindle While in motion.

HENRY F SHAVV.

Witnesses:

SYLvENUs TALKER, WILLIAM H. PARRY: 

